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Currently I need to use the Switch Account feature. This feature is difficult to use. It requires the reseller to login after switching to each domain.

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You should be able to simply select another account you/the reseller owns to access another account. No login prompt should be present.

A trick I use is to keep one tab with the drop-down box and another tab with File Manager. When I want to manipulate files in another account, I switch accounts then reload my tab with File Manager. It will refresh to display the contents of that account.

If you switch accounts during an upload, don't worry - the file will continue to upload but it will simply not update the status of that upload. You may wish to swich back to that account later to ensure the upload has completed rather than perhaps prematurely closing that window (resulting in an incomplete upload).

I'm not sure if all of this is intended functionality by the developers, but it is how it works at the moment .